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Multi-Turn Electric Actuator Constantly To Standardization
- Sep 27, 2017 -

According to the use of the selected valve operating conditions to determine whether the electric actuator is adjustable or switch type. We know that under normal circumstances, Multi-Turn Electric Actuator the electric control valve used to adjust the type of actuator; electric gate valve, globe valve used in the actuator for the switch type. But the type of valve is not the only determinant of the selection of electric actuators. When we choose to use a regulated or switch-type electric actuator for an electric valve, Multi-Turn Electric Actuator the frequency of use of the valve in the unit time determines which electric Actuator. For example, the use of remote manual control of the control valve to say, you can also use the switch-type electric actuator. In the past, electric actuators were strictly divided into switch-type electric devices and adjustable type of electric actuators, Multi-Turn Electric Actuator so our country still has the corresponding national standards for such products have a strict definition and requirements. But with a large number of imported, imported electric actuators into the market, as well as the continuous improvement of the level of automation, electric actuators continue to the standardization, modular, intelligent change, Multi-Turn Electric Actuator the current market of electric actuators are mainly switched-type electric And adjustable electric actuators. Switch type electric actuators are commonly used products in the past, such as ZZ series of Changzhou Power Station auxiliary plant, DZW series of Yangzhou electric power repair factory, all use 15 min short working system, Multi-Turn Electric Actuator the allowable starting frequency is usually '100 times, Applicable to the request is not high, the action is not frequent on the two-valve, because it has a large power, low cost, better reliability advantages, is still widely used in power plants. In recent years, some manufacturers are also based on the old products, have extended the development of an integrated electric device, and according to the need to provide 4 ~ 2O mA feedback current signal, such as Changzhou Power Station auxiliary plant ZB integration series. Although the price of the old product has increased, but for the power plant to provide more types of control valve electric actuator.

As the control valve in the past only play a regulatory role, Multi-Turn Electric Actuator the front often set with a cut-off valve, so the valve leakage level is usually not required, so to reduce the valve action required torque balanced structure, limited to the design and manufacture of electric actuators Level, so the regulated electric actuator is usually a small power electric actuator. Multi-Turn Electric Actuator Such as automation instrument 11 factory DKZ series. However, with the continuous improvement of the requirements of the control valve, as well as power station design to large capacity, high parameter development, the original electric actuator power has been unable to meet the requirements of adjustable electric actuators have gradually begun to use high-power products.